update_member.jsp页面部分代码是(manage是工程名字)：
<form name= "form " method= "post " action= "/manage/member.do?method=update_member ">
<table width= "90% " border= "0 " align= "center " class= "title ">
<tr>
<td colspan= "2 " class= "title "> 修改会员 </td>
</tr>
<tr>
<td width= "30% " class= "td "> <div align= "right "> 用户名： </div> </td>
<td width= "70% " class= "td "> <input name= "userName " type= "text " value= " " size= "20 "/> </td>
</tr>
<tr>
<td class= "td "> <div align= "right "> 性别： </div> </td>
<td class= "td ">
<select name= "sex " size= "1 ">
<option value= "1 "> 男 </option>
<option value= "0 "> 女 </option>
</select> </td>
</tr>
<tr>
<td class= "td "> <div align= "right "> 出生年月日： </div> </td>
<td class= "td "> <input name= "birthday " type= "text " value= " " size= "20 "/> </td>
</tr>
<tr>
<td class= "td "> <div align= "right "> 是否关闭此会员： </div> </td>
<td class= "td "> <select name= "manage " size= "1 ">
<option value= "0 " > 是 </option>
<option value= "1 " > 否 </option>
</select> </td>
</tr>
<tr>
<td class= "td "> <div align= "right "> 注册时间： </div> </td>
<td class= "td "> <input name= "date " type= "text " value= " " size= "20 "/> </td>
</tr>
<tr>
<td align= "right " class= "td "> <input type= "submit " name= "submit " value= "修改 "/> </td>
